CA2371073A1 - Agile mode for modbus network protocol - Google Patents

Agile mode for modbus network protocol Download PDF

Info

Publication number
CA2371073A1
CA2371073A1 CA002371073A CA2371073A CA2371073A1 CA 2371073 A1 CA2371073 A1 CA 2371073A1 CA 002371073 A CA002371073 A CA 002371073A CA 2371073 A CA2371073 A CA 2371073A CA 2371073 A1 CA2371073 A1 CA 2371073A1
Authority
CA
Canada
Prior art keywords
message frame
slave device
type
master
character
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
CA002371073A
Other languages
French (fr)
Other versions
CA2371073C (en
Inventor
Keith E. Siders
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Schneider Electric USA Inc
Original Assignee
Square D Company
Keith E. Siders
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Square D Company, Keith E. Siders filed Critical Square D Company
Publication of CA2371073A1 publication Critical patent/CA2371073A1/en
Application granted granted Critical
Publication of CA2371073C publication Critical patent/CA2371073C/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L9/00—Cryptographic mechanisms or cryptographic arrangements for secret or secure communications; Network security protocols
    • H04L9/40—Network security protocols
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L69/00—Network arrangements, protocols or services independent of the application payload and not provided for in the other groups of this subclass
    • H04L69/18—Multiprotocol handlers, e.g. single devices capable of handling multiple protocols

Abstract

A Modbus slave device is operable in an agile mode that allows the slave device to automatically in-terpret and respond to first-type and second-type message frames conveyed to the slave device by a master device. The slave device detects a first incoming character of a master query message frame generated by the master device. If the first incoming character is a prompt character for the first--type message frame, the slave device interprets the master query message frame as the first-type message frame. If the first incoming character is not the prompt character for the first-type message frame, the slave device interprets the master query message frame as the second-type message frame. If the slave device is addressed in the master query message frame, the slave device performs the command as-sociated therewith and, if required by the command, gener-ates a responsive slave message frame of the same type as the master query message frame.
CA002371073A 2000-02-25 2001-02-05 Agile mode for modbus network protocol Expired - Lifetime CA2371073C (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
US09/513,605 2000-02-25
US09/513,605 US6880015B1 (en) 2000-02-25 2000-02-25 Agile mode for Modbus network protocol
PCT/US2001/003739 WO2001063369A1 (en) 2000-02-25 2001-02-05 Agile mode for modbus network protocol

Publications (2)

Publication Number Publication Date
CA2371073A1 true CA2371073A1 (en) 2001-08-30
CA2371073C CA2371073C (en) 2008-04-15

Family

ID=24043945

Family Applications (1)

Application Number Title Priority Date Filing Date
CA002371073A Expired - Lifetime CA2371073C (en) 2000-02-25 2001-02-05 Agile mode for modbus network protocol

Country Status (7)

Country Link
US (1) US6880015B1 (en)
EP (1) EP1210654B1 (en)
AU (1) AU781818B2 (en)
CA (1) CA2371073C (en)
DE (1) DE60124201T2 (en)
MX (1) MXPA01010846A (en)
WO (1) WO2001063369A1 (en)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101645752B (en) * 2008-08-08 2013-01-09 鸿富锦精密工业（深圳）有限公司 Automatic detection system and automatic detection method of communication protocol
US9779902B2 (en) * 2013-11-12 2017-10-03 Rockwell Automation Technologies, Inc. Configurable modular intelligent electronic overload device and system with embedded programming tool
CN104020701A (en) * 2014-06-05 2014-09-03 江苏建筑职业技术学院 Full-isolation multichannel universal analog quantity input and output device based on Mod Bus-RTU
KR101632835B1 (en) * 2015-04-14 2016-06-23 엘에스산전 주식회사 Method of auto setting protoco in programmable logic controller system
AU2018210244A1 (en) * 2017-01-18 2019-08-08 Coulomb Inc. Method of optimizing market supply and demand dynamics for energy distribution and consumption

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4484303A (en) * 1979-06-19 1984-11-20 Gould Inc. Programmable controller
US6792337B2 (en) * 1994-12-30 2004-09-14 Power Measurement Ltd. Method and system for master slave protocol communication in an intelligent electronic device
US5838750A (en) * 1995-10-31 1998-11-17 Otis Elevator Company Binary data electronic communication system
US5862391A (en) 1996-04-03 1999-01-19 General Electric Company Power management control system
US6101545A (en) * 1996-10-21 2000-08-08 Hughes Electronics Corporation Message handling system for different message delivery types
US6005759A (en) * 1998-03-16 1999-12-21 Abb Power T&D Company Inc. Method and system for monitoring and controlling an electrical distribution network
US6678751B1 (en) * 1999-10-15 2004-01-13 Micro Motion, Inc. System for setting frame and protocol for transmission in a UART device
US6813525B2 (en) * 2000-02-25 2004-11-02 Square D Company Energy management system

Also Published As

Publication number Publication date
AU781818B2 (en) 2005-06-16
DE60124201T2 (en) 2007-09-06
DE60124201D1 (en) 2006-12-14
CA2371073C (en) 2008-04-15
US6880015B1 (en) 2005-04-12
WO2001063369A1 (en) 2001-08-30
MXPA01010846A (en) 2002-05-06
EP1210654A1 (en) 2002-06-05
AU3483201A (en) 2001-09-03
EP1210654B1 (en) 2006-11-02

Similar Documents

Publication Publication Date Title
CA2299422A1 (en) Telephone status notification system
WO2004086164A3 (en) Optimal location service for managing next hop addressing for messages associated with multiple address schemes
GB2329561B (en) Communication method using protocol options
CA2287939A1 (en) System and method for communication media management
CA2044005A1 (en) Intelligent network interface circuit
EP0681387A3 (en) Open transaction manager access system and method
CA2251554A1 (en) Network marketplace device and method
AU2003225210A1 (en) Managing power in a line powered network element
MXPA04004722A (en) Method and system for providing security within multiple set-top boxes assigned for a single customer.
WO2001080435A3 (en) Power line communication network
EP1289221A3 (en) Network communication method and system
AU2001290370A1 (en) Battery monitoring network
WO2005053270A3 (en) Mobius time-triggered communication
CA2384902A1 (en) Communication method between a master node and slave nodes and communication system employing a master node and slave nodes
CA2371073A1 (en) Agile mode for modbus network protocol
WO2000079728A3 (en) Method and apparatus for reducing load distribution delay in an internet protocol switch
CA2248634A1 (en) Common connector framework
EP0755138A3 (en) Network node device
AU7279796A (en) Animal feed additives
AU3341997A (en) Structural member and process for producing a structural member
CA2310907A1 (en) Creating a spanning tree of a network including clusters
AU4762400A (en) A method for implementing a chatline or a noticeboard service in a mobile telephone network
AU2517097A (en) Display systems
WO2000049481A3 (en) Dynamic information gateway management system
GB2352930A8 (en) Multi-mode telecommunication device

Legal Events

Date Code Title Description
EEER Examination request
MKEX Expiry

Effective date: 20210205